|
|
1.1 ! root 1: .\" Copyright (c) 1989 The Regents of the University of California. ! 2: .\" All rights reserved. ! 3: .\" ! 4: .\" This code is derived from software contributed to Berkeley by ! 5: .\" Eamonn McManus of Trinity College Dublin. ! 6: .\" ! 7: .\" Redistribution and use in source and binary forms are permitted provided ! 8: .\" that: (1) source distributions retain this entire copyright notice and ! 9: .\" comment, and (2) distributions including binaries display the following ! 10: .\" acknowledgement: ``This product includes software developed by the ! 11: .\" University of California, Berkeley and its contributors'' in the ! 12: .\" documentation or other materials provided with the distribution and in ! 13: .\" all advertising materials mentioning features or use of this software. ! 14: .\" Neither the name of the University nor the names of its contributors may ! 15: .\" be used to endorse or promote products derived from this software without ! 16: .\" specific prior written permission. ! 17: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED ! 18: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF ! 19: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 20: .\" ! 21: .\" @(#)arithmetic.6 6.6 (Berkeley) 6/23/90 ! 22: .\" ! 23: .TH ARITHMETIC 6 "June 23, 1990" ! 24: .UC 4 ! 25: .SH NAME ! 26: arithmetic \- quiz on simple arithmetic ! 27: .SH SYNOPSIS ! 28: .B arithmetic ! 29: .B [ ! 30: \-o +\-x/ ! 31: .B ] ! 32: .B [ ! 33: \-r range ! 34: .B ] ! 35: .SH DESCRIPTION ! 36: .I Arithmetic ! 37: asks you to solve problems in simple arithmetic. ! 38: Each question must be answered correctly before going on to the next. ! 39: After every 20 problems, it prints the score so far and the time taken. ! 40: You can quit at any time by typing the interrupt or end-of-file character. ! 41: .PP ! 42: The options are as follows: ! 43: .TP ! 44: \-o ! 45: By default, ! 46: .I arithmetic ! 47: asks questions on addition of numbers from 0 to 10, and corresponding ! 48: subtraction. ! 49: By supplying one or more of the characters ! 50: .BR +\-x/ , ! 51: you can ask for problems in addition, subtraction, multiplication, and ! 52: division, respectively. ! 53: If you give one of these characters more than once, that kind of problem ! 54: will be asked correspondingly more often. ! 55: .TP ! 56: \-r ! 57: If a ! 58: .I range ! 59: is supplied, ! 60: .I arithmetic ! 61: selects the numbers in its problems in the following way. ! 62: For addition and multiplication, the numbers to be added or multiplied ! 63: are between 0 and ! 64: .IR range , ! 65: inclusive. ! 66: For subtraction and division, both the required result and the number to ! 67: divide by or subtract will be between 0 and ! 68: .IR range . ! 69: (Of course, ! 70: .I arithmetic ! 71: will not ask you to divide by 0.) The default ! 72: .I range ! 73: is 10. ! 74: .PP ! 75: When you get a problem wrong, ! 76: .I arithmetic ! 77: will remember the numbers involved, and will tend to select those numbers ! 78: more often than others, in problems of the same sort. ! 79: Eventually it will forgive and forget. ! 80: .PP ! 81: .I Arithmetic ! 82: cannot be persuaded to tell you the right answer. ! 83: You must work it out for yourself. ! 84: .SH DIAGNOSTICS ! 85: ``What?'' if you get a question wrong. ! 86: ``Right!'' if you get it right. ! 87: ``Please type a number.'' if arithmetic doesn't understand what you typed. ! 88: .SH "SEE ALSO" ! 89: bc(1), dc(1)
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.